摘要
为了适应干扰对系统输出的影响,本文研究了一类参数不确定采样系统具有极点约束的鲁棒H_∞状态反馈控制问题。在该控制器控制下,采样系统同时受到参数扰动和未建模扰动时仍然是稳定的,且扰动后各项性能指标变化较小。控制器的求得借助于求解一类具有LMI约束的凸优化问题,方法简单易行,为实际系统中的应用提供方便,最后给出了算例仿真,说明了本文方法的有效性。
In industry control the computer control systems are existed. The sampled-data systems are the best hackneyed one in computer control systems. The disturbance consists in practical system here and there. For adapting the system with the disturbance this paper studies the problem of the robust H∞ state feedback controller design in a class data-sampled system with parameter uncertainty and pole constrain. Under controlling, the data-sampled system with the parameter disturbance and un-modeling disturbance is still stable and its performance has less changes. The robust control law is received by solving a class convex optimization with LMI constrains. The method is simple and convenient in practice and provides a reference for engineering practice. Finally, a simulation example shows that the proposed method is very effective.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2006年第B07期1-4,共4页
Journal of Nanjing University of Aeronautics & Astronautics
基金
黑龙江教育厅科研基金(10541039)资助项目
教育部科研基金(206041)资助项目
哈尔滨科技局科研基金(2005AAIC037)资助项目
关键词
鲁棒控制
H∞控制
采样系统
线性矩阵不等式
计算机控制
robust control
H∞ control
data-sampled system
linear matrix inequality （LMI）
computer control
